<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%--@include 将三个页面合一--%>
    <%@include file="common/header.jsp"%>
    <h1>content</h1>
    <%@include file="common/footer.jsp"%>
<hr>
<%--jsp:include 拼接,本质还是3个界面(推荐,灵活性更高)--%>
    <%--标签体--%>
    <jsp:include page="/common/header.jsp"/>
    <h1>content</h1>
    <jsp:include page="/common/footer.jsp"/>
</body>
</html>
